Window-ventilator.



F. SCHUELER.

WINDOW VENTILATOR. APPLICATION FILED JUNE 24, I914.

Patented Feb. 27, 1917.

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F. SCHUELER.

wmoow VENTILATOR.-

APPLICATION FILED JUNE 24; 1914- V Patented Feb. 27,1917.

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TE STAS "r FREDERICK SCHUELER, F BLOOMINGTON, ILLINOIS;

WINDOW-VENTILAT OR.

Specification of Letters Patent.

Patented Feb. 2t, 1917.

Application filed'J'une 24, 1914. Serial No. 847,088.

with the body portion of the slat as at 5 for tilators, of which the following is a specification.

My invention relates to an improvement in window ventilators, and the object is to provide means for extending the ventilator to various widths of window frames.

A further object is in the provision of means for regulating the opening or openings in the ventilator for the admission of air to the room.

The invention consists of still other novel features of construction and combinations of parts which will be hereinafter more fully described and pointed out in the claims.

In the accompanying drawings:

Figure 1 is a view in elevation at the front or inner side of the ventilator showing the ventilator in extended position;

Fig. 2 is a transverse vertical sectional vlew;

Fig. 3 is a transverse vertical sectional view showing the manner of mounting the slats upon an end member; V s

Fig. 4 is a longitudinal vertical sectional view showing the slats in closed position;

Fig. 5' is a detailsectional view of the actuating lever; and

Fig. 6 is a plan view.

IA and B represent the end members of the ventilator, which are adapted to be received within the window frame.

The post A has the outer edges thereof turned inwardly, as at 1, 1 so that smooth edges are formed which engage the, window frame and prevent any possibility of the member marring the window frame.

The member B preferably consists of two telescopic sections made 'U-shaped. Interposed between these two sections are springs '2, 2 which normally cause the two sections to be held in their extended position. Interposed between the members A and B are a plurality of flanged slats 3, 3.

Located between the slats 3, 3, which are rigidly connected to the members A and B are pivotedfianged slats 4, 4: these slats being pivotally mounted upon the members A and'B. Each of the slats 3 and 4 are made in two sections. One of the two sections has the edges thereof turned or bent parallel forming flanges. The other section of the slat is held to the other section by means of the-flanges and permits a sliding movement, sothat the slat can be lengthened and shortened as desired. A rib 6 is connected to the outer edge of the flanged sections of the stationary slat on the outer or rear side thereof for afi'ord ing rigidity to the several slat sections.

Mounted upon the inner or front sides of the upper and lower sliding stationary slats is a guide plate 7 Slidably mounted in the guide plate is a bar 8, which is provided with a knob 9 for reciprocating the bar.

The movable slat sections are provided with curved arms 10, which have pivotal engagement with the sliding bar 8, so that as the bar is reciprocated in one direction, the

slats will be open, and on moving in the opposide direction, the slats will be closed, bringing the slats into engagement with the stationary slats. The movable slats, by means of the sliding bar, can be actuated for forming any size of opening between said movable slat and the stationary slat, as desired, thereby regulating the amount of air to be admitted to'the room.

Connected to one 'of the stationary sections is a stop 11, which is adapted tobe engaged by a lug 12 on the companion slat section for limiting the expansion or longitudinal movement of the slat sections.

It is to be noted that the upper and lower stationary slats, are so constructed that the lower edge of the lowermost slat will engage the sill of the Window frame, when the ventilator is put in position, and the upper portion of the uppermost slat will engage the inner surface of the sash, so there is no possi bility of air or moisture passing into the room or building at the top or bottom of the ventilator. These two slats together with the intermediate slat form the means'for maintaining the ventilator in a rigid or stable position, as they. are rigidly connected to the end members A and B.

Furthermore, each of the slats has the ends or horizontal edges extending at angles greater than right angles thereto, so that there is practically no possibility of rain entering the room even when the pivoted slats are not in engagement with the stationary slats.

The plate 7 form a means of support for the pivoted slats, especiallywhen they are extended, preventing them from sagging, as the stationary members or slats are always rigid, and the plate 7 is connected to the stationary members or slats 3, while the plate 7 carries the bar 8 which is connected to the ptilvoted slats 4 for the purpose of operating t em.

From the foregoing, it will be seen thata construction is'provided which has stability, and which will retain its shape although capable of being extended to various lengths. Ihe stationary slat members maintain the end members in a vertical position, and the alternately arranged movable slats afiord means for regulating the amount of air to be admitted to a room.

A further advantage of my invention is that there is no need for providing any means for holding the slats where set, as, due to the peculiar construction of the slats with their flanged edges, there Willbe sufiicient friction between the parts to obviate the necessity for any such retaining device.

I claim:

1. In a ventilator, the combination with end members, alternate stationary and pivoted slats mounted upon said end members, a guide plate mounted upon said stationary members, a bar frictionally mounted in said guide plate and capable of sliding movement therein, means connecting the pivotally mounted slats to said bar so arranged that upon the sliding of said bar in said guide plate the pivotally mounted slats Will be operated.

2. In a ventilator, the combination with end members, alternate stationary and pivoted extensible slats mounted-upon said end members, a guide bar connecting the inner edges of the stationary extensible slats, a bar slidably mounted in said guide plate having holes, curved arms, one end of each being connected to a pivotally mounted extensible slat, the other ends being adapted to loosely enter the holes in said bar, where by upon the actuation of the bar in the guide plate the pivoted extensible slats will be positively rotated to any position desired, and held there by frictional engagement of the bar with said guide plate.

In testimony whereof I aflix my signature, in the presence of two witnesses.

Witnesses EDNA MOORE, HAZEL SMITH. 

